Restoring these old, rusty scissors is a step-by-step process that uses simple techniques and machines. The rust removal ...

Forging a knife with 32 steel balls hidden inside the blade! In this experimental knife-making video, we groove a steel plate, add 32 solid steel balls, and forge them into a single, functional knife.

Kevin Cheung] likes to upcycle old soda cans into — well — things. The metal is thin enough to cut by hand, but he’d started using a manual die-cutting machine, and it worked ...